Patents by Inventor Takeshi Nishi
Takeshi Nishi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8659730Abstract: A liquid crystal dripping method has a problem in that an uncured sealant increases in width at the time of attaching a pair of substrates and thus a liquid crystal material enters the sealant and unevenness occurs in the inner periphery of the sealant. A region in which reduced is the speed of diffusion of liquid crystal at the time of attaching a pair of substrates is provided between a sealant and an orientation film. Further, time for diffusing the liquid crystal and coming in contact with the sealant is made long. Accordingly, the sealant is subjected to photo-curing before the liquid crystal comes in contact with the sealant. The region in which reduced is the speed of diffusion of the liquid crystal is formed using a material for forming a vertical orientation film, a silane coupling agent, a substance having a photocatalytic function, or the like.Type: GrantFiled: October 5, 2011Date of Patent: February 25, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahide Kanai, Takeshi Nishi, Daisuke Kubota, Tetsuji Ishitani
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Patent number: 8624257Abstract: An object of the present invention is to provide a light emitting device in which variations in an emission spectrum depending on a viewing angle with respect to a side from which luminescence is extracted are decreased. A light emitting device according to the invention has a transistor, an insulating layer covering the transistor and a light emitting element provided in an opening of the insulating layer. The transistor and the light emitting element are electronically connected through a connecting portion. Additionally, the connecting portion is connected to the transistor through a contact hole penetrating the insulating layer. Note that the insulating layer may be a single layer or a multilayer in which a plurality of layers including different substances is laminated.Type: GrantFiled: February 2, 2009Date of Patent: January 7, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takahiro Kawakami, Kaoru Tsuchiya, Takeshi Nishi
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Patent number: 8610846Abstract: An object of the present invention is to provide a display device having a high contrast ratio by a simple and easy method. Another object of the present invention is to manufacture such a display device having a high contrast ratio at low cost. The present invention relates to a display device including a first substrate; a second substrate; a layer including a display element, wherein the layer including the display element is interposed between the first substrate and the second substrate; and stacked polarizers on the outer side of the first substrate or the second substrate. The stacked polarizers are arranged to be in a parallel Nicols state and the wavelength distributions of the extinction coefficients of the stacked polarizers are different from each other.Type: GrantFiled: July 27, 2012Date of Patent: December 17, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tetsuji Ishitani, Takeshi Nishi, Yuji Egi
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Patent number: 8610142Abstract: By doping an organic compound functioning as an electron donor (hereinafter referred to as donor molecules) into an organic compound layer contacting a cathode, donor levels can be formed between respective LUMO (lowest unoccupied molecular orbital) levels between the cathode and the organic compound layer, and therefore electrons can be injected from the cathode, and transmission of the injected electrons can be performed with good efficiency. Further, there are no problems such as excessive energy loss, deterioration of the organic compound layer itself, and the like accompanying electron movement, and therefore an increase in the electron injecting characteristics and a decrease in the driver voltage can both be achieved without depending on the work function of the cathode material.Type: GrantFiled: December 18, 2012Date of Patent: December 17, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Nishi, Satoshi Seo
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Publication number: 20130329964Abstract: There are provided a face detection unit that detects a face of an animal in an image; a candidate area setting unit that sets an animal body candidate area for a body of the animal in the image based upon face detection results provided by the face detection unit; a reference image acquisition unit that obtains a reference image; a similarity calculation unit that divides the animal body candidate area having been set by the candidate area setting unit into a plurality of small areas and calculates a level of similarity between an image in each of the plurality of small areas and the reference image; and a body area estimating unit that estimates an animal body area corresponding to the body of the animal from the animal body candidate area based upon levels of similarity having been calculated for the plurality of small areas by the similarity calculation unit.Type: ApplicationFiled: March 2, 2012Publication date: December 12, 2013Applicant: NIKON CORPORATIONInventor: Takeshi Nishi
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Patent number: 8593614Abstract: Techniques for successively fabricating liquid crystal cells at low cost, using two resinous substrates wound on their respective rolls. A color filter and an electrode pattern are formed by printing techniques. Furthermore, an orientation film is printed. These manufacturing steps are carried out successively by rotating various rolls.Type: GrantFiled: March 25, 2010Date of Patent: November 26, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Nishi, Satoshi Teramoto
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Patent number: 8591694Abstract: To prevent alignment disorder of liquid crystal molecules, which is caused in manufacturing steps, and to manufacture a liquid crystal display device including a uniform liquid crystal layer in which liquid crystal molecules are aligned with high accuracy. In addition, to provide a technique for manufacturing a liquid crystal display device which is capable of fast response and high performance, and has high image quality with reduced display defects, with high yield. A method for manufacturing a liquid crystal display device, including dropping smectic liquid crystal by a dropping method in which a plurality of droplets of smectic liquid crystal are dropped to an alignment film so that the droplets are aligned in a line which is parallel to a rubbing direction of the alignment film which is formed in a region surrounded by a seal pattern of a sealant over a substrate.Type: GrantFiled: March 7, 2008Date of Patent: November 26, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tetsuji Ishitani, Takeshi Nishi
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Patent number: 8593603Abstract: A display device includes an anti-reflection film having a plurality of projections over a display screen surface. An angle made by a base and a slope of each of the plurality of projections is equal to or greater than 84° and less than 90°.Type: GrantFiled: May 30, 2007Date of Patent: November 26, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuji Egi, Takeshi Nishi, Kiyofumi Ogino, Shinya Sasagawa, Motomu Kurata, Hideomi Suzawa
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Patent number: 8593591Abstract: [Problem] In the present invention, it is an object to improve display quality by improving response speed of a liquid crystal element in a liquid crystal display device, in particular, response speed in the case of falling. [Means for Solving the Problems] In the present invention, it is characterized that a liquid crystal layer is divided into plural regions (domains) substantially by mixing a chemical compound including a liquid crystal skeleton in a liquid crystal layer exisiting liquid crystal molecules as a technique to improve response speed of a liquid crystal element in a liquid crystal display device for solving the above problem.Type: GrantFiled: September 13, 2012Date of Patent: November 26, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Nishi, Tetsuji Ishitani, Daisuke Kubota
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Patent number: 8587658Abstract: An imaging device includes a main photography means for photographing a photographic subject and acquires a photographic image, a preparatory image acquisition means for performing preparatory photography before or after the main photography means acquires the photographic image and acquiring preparatory images, a photographic information acquisition means for acquiring photographic information related to a circumstance of photography when the preparatory images are acquired by the preparatory image acquisition means, and a recording means for recording the photographic information and the photographic image upon a recording medium in mutual correlation.Type: GrantFiled: June 5, 2008Date of Patent: November 19, 2013Assignee: Nikon CorporationInventors: Keiichi Nitta, Yuko Hattori, Go Watanabe, Hiroyuki Tomita, Hideo Hoshuyama, Kenji Suzuki, Saeko Samejima, Mikiya Tanaka, Setsu Mitsuhashi, Takeshi Nishi
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Publication number: 20130293741Abstract: There are provided a feature amount acquisition unit acquiring feature amounts of focused states of a first image and a second image which are captured in time-series; a calculation unit dividing each of the first image and the second image into a plurality of image areas and determining a frequency distribution of a feature amount for each of the image areas; and a motion detection unit calculating a difference between the frequency distribution of the first image and that of the second image for each of the image areas and detecting a motion of a subject based on a frequency distribution of the difference for each of the image areas.Type: ApplicationFiled: January 6, 2012Publication date: November 7, 2013Applicant: NIKON CORPORATIONInventor: Takeshi Nishi
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Patent number: 8563333Abstract: There is provided a film formation apparatus which is capable of forming an EL layer using an EL material with high purity. The EL material is purified by sublimation immediately before film formation in the film formation apparatus, to thereby remove oxygen, water, and another impurity, which are included in the EL material. Also, when film formation is performed using the EL material (high purity EL material) obtained by purifying with sublimation as an evaporation source, a high purity EL layer can be formed.Type: GrantFiled: September 13, 2012Date of Patent: October 22, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Toshimitsu Konuma, Takeshi Nishi
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Publication number: 20130256714Abstract: A light emitting device having a structure in which oxygen and moisture are prevented from reaching light emitting elements, and a method of manufacturing the same, are provided. Further, the light emitting elements are sealed by using a small number of process steps, without enclosing a drying agent. The present invention has a top surface emission structure. A substrate on which the light emitting elements are formed is bonded to a transparent sealing substrate. The structure is one in which a transparent second sealing material covers the entire surface of a pixel region when bonding the two substrates, and a first sealing material (having a higher viscosity than the second sealing material), which contains a gap material (filler, fine particles, or the like) for protecting a gap between the two substrates, surrounds the pixel region. The two substrates are sealed by the first sealing material and the second sealing material.Type: ApplicationFiled: May 31, 2013Publication date: October 3, 2013Inventors: Takeshi Nishi, Yasuo Nakamura
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Patent number: 8514361Abstract: A liquid crystal display device comprises a first substrate, a thin film transistor over an upper surface the first substrate, an interlayer insulating film formed over the thin film transistor, a first insulating layer formed over the interlayer insulating film, a second insulating layer formed over the interlayer insulating film, an electrode electrically connected to the thin film transistor wherein a portion of the electrode is formed on at least side surfaces of the first insulating layer, a common electrode formed over the interlayer insulating film wherein a portion of the common electrode is formed on at least side surfaces of the second insulating layer such that an electric field is produced by the common electrode and the electrode, a second substrate opposed to the first substrate, and a mixture containing a polymer and a liquid crystal between the first substrate and the second substrate. The electric field is applied to the mixture.Type: GrantFiled: May 24, 2012Date of Patent: August 20, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu Hirakata, Takeshi Nishi, Rumo Satake
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Patent number: 8493542Abstract: Techniques for successively fabricating liquid crystal cells at low cost, using two resinous substrates wound on their respective rolls. A color filter and an electrode pattern are formed by printing techniques. Furthermore, an orientation film is printed. These manufacturing steps are carried out successively by rotating various rolls.Type: GrantFiled: December 29, 2004Date of Patent: July 23, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Nishi, Satoshi Teramoto
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Patent number: 8467023Abstract: An anti-reflection film that can provide high visibility and has an anti-reflection function by which reflection of incident light from external can be further reduced, and a display device having such an anti-reflection film. A plurality of contiguous pyramidal projections is arranged in a geometric pattern, so that reflection of incident light is prevented. In addition, a protective layer formed of a material having a lower refractive index than the pyramidal projections is provided so as to fill a space between the plurality of pyramidal projections. The plurality of pyramidal projections has a hexagonal shape and can be densely arranged with no space therebetween. Further, since six sides of each pyramidal projection are provided at a different angle from the base, light can be effectively scattered in many directions.Type: GrantFiled: December 13, 2011Date of Patent: June 18, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Jiro Nishida, Yuji Egi, Takeshi Nishi, Shunpei Yamazaki
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Patent number: 8455916Abstract: A light emitting device having a structure in which oxygen and moisture are prevented from reaching light emitting elements, and a method of manufacturing the same, are provided. Further, the light emitting elements are sealed by using a small number of process steps, without enclosing a drying agent. The present invention has a top surface emission structure. A substrate on which the light emitting elements are formed is bonded to a transparent sealing substrate. The structure is one in which a transparent second sealing material covers the entire surface of a pixel region when bonding the two substrates, and a first sealing material (having a higher viscosity than the second sealing material), which contains a gap material (filler, fine particles, or the like) for protecting a gap between the two substrates, surrounds the pixel region. The two substrates are seated by the first sealing material and the second sealing material.Type: GrantFiled: July 22, 2011Date of Patent: June 4, 2013Assignee: Semiconductor Energy Laboratory, Ltd.Inventors: Takeshi Nishi, Yasuo Nakamura
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Patent number: 8456607Abstract: It is an object of the present invention to suppress light leakage in a dark state which is generated by rubbing treatment. A liquid crystal material containing an ultraviolet curable liquid crystalline monomer at a concentration of more than 0 wt % and not more than 1.0 wt % is used for a liquid crystal layer, and the liquid crystal layer is irradiated with ultraviolet rays. By applying such a liquid crystal layer to a liquid crystal display device, light leakage in a dark state can be suppressed, and the black display can be improved. Therefore, a liquid crystal display device with an excellent contrast and high display quality can be obtained.Type: GrantFiled: February 3, 2010Date of Patent: June 4, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daisuke Kubota, Takeshi Nishi, Tetsuji Ishitani
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Patent number: 8446537Abstract: In an active matrix type liquid crystal display device, a plurality of pixels connected to thin film transistors (TFTs) are arranged in an active matrix form in a pixel portion, and driven by a driver circuit portion. The pixel portion and the driver circuit portion are formed on one of a pair of insulating substrates. A liquid crystal material is interposed between the insulating substrates. An black matrix material made of an organic resin is formed over the one insulating substrate in which the driver circuit portion has been formed. An flat film is formed on the black matrix material.Type: GrantFiled: January 9, 2012Date of Patent: May 21, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Takeshi Nishi
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Patent number: 8441544Abstract: An electronic camera is characterized by including an imaging part shooting a figure image; an area detection part detecting a flesh-colored area including a face portion and a portion other than a face; a color judgment part judging color information of the flesh-colored area; a color difference calculation part determining a color difference between first color information of the face portion and second color information of the flesh-colored area of the portion other than the face; a correction coefficient calculation part determining color correction coefficients based on the color difference; an area appointment part appointing an area on which a color conversion is performed; and a color conversion part performing, when the color difference is equal to or greater than a predetermined value, the color conversion on the area appointed by the area appointment part by using the color correction coefficients.Type: GrantFiled: January 22, 2010Date of Patent: May 14, 2013Assignee: Nikon CorporationInventors: Kazue Minagawa, Keiichi Nitta, Takeshi Nishi